Washing-machine mechanism



Se t. 16, 1924. 1,508,508

J. w. DAWSON wasnme MACHINE MECHANISM' Filed Jan. 4. 1924 2 Shoots-Sheet1 F ,5 907 Fig, 6,

. 421W 2 l! Z2 1 59aj 2/5 26 ,7'722ffi972 Z02.- gf Jarfies WDa u/aan, 26I Patented Sept. 16, 1924.

a a, W. DAWSON,

- -0F BELVIDEBE, ILLINOIS, ASSIGNO R '1'0 NATIONAL SEWING MACHINECOMPANY, OF BELVIDERE, ILLINOIS,

a oonroaa'rion or rumorsnamsrz.

a l cation filed ranuar a, 19%. Serial no. 684,812.

To all whom it may concem:

Be it known that 1, JAMES W. Dawson, a

citizen of the United States, residing at "Belvidere, in the county ofBoone and State of Illinois, have invented certain new and usefulImprovements in Washing-Machine Mechanism, of which the following is aspecificatiomreference being had to the accompanying drawings, and tothe reference characters marked thereon, which form a part of thisspecification.

This invention relates to improvements in washing machines, and moreparticularly to thattype of machine in which the washing elementcomprises a pluralit of clothes ,engaging members or cups wlthin the tubor container, adapted to be reciprocated vertically into and out of thewash water in sai "container, and which cups are progressively movedshort orbit to assume a each reciprocation.

difierent position with I The invention consists in the novel devices"and combinations of devices herein illustrated, described and claimed,and will be readily comprehended as I proceed with my specification. y

In the accom anying'drawings:

' Fig.1 is a si e elevation, partly in section, of a washin machine tubto which my invention has ieen applied.

Fig. 2 is a transverse, sectional view of the same taken in thehorizontal plane indicated by the dotted line 2-2 of Fig. 1.

Fig. 3 is a central, vertical, sectional view of the supporting standardand parts for the operating shaft, showing the shaft and one of the cupsand its bracket or arm in elevation, the section being taken in. the

%lane2indicated by the dotted line 3-3 of Fig. 4 is a similar view,enlarged, of a retainin cap, this section being also in the glansindicated by the dotted line 3-3 of erab y i circular term, as sho n, am t:

distancesin a circular path or -The annular lower surface erably, ofcopper; and is provided with a cover member 2. The tub I rests with itsbottom 3 upon a supp ort 4 of any suitable frame construction. he cover2 rests upon the top margin 5 of the tub and is removable by the handles6 or other suitable means.

An operatin shaft. 7 passes through an opening 8 in t e tub bottom 3,and is supported in a tubular standard or hearing 9 having a removablehead or shoulder 10 on its upper end suitably packed. as indicated at14. This bearing 9 is firmly secured to the bottom 3 in any convenientmanner. Said support or bearing 9 extends upwardly into the tub 1 adesirable distance. Preferably, the-bearing is centrally located withrespect to the tub 1, so that the longitudinal axis d of the shaft 7within said bearing 9, will coincide with the central median line orvertical axis of the tub 1. The shaft 7 will be given a verticallongitudinal recipcause any well known mec anism for producing areciprocating motion may be employed for this purpose. The shalft 7 hasno rotative motion, er se, this not being required rocation, no means'beinghshown herein beto accomplish t e objects of'my invention, as

will be more fully hereinaftershown.

A cup bearing spider arm, opcratively positioned upon the shaft 7,consists of a vertically apertured central member 11 and a plurality ofdownwardly projecting, equally spaced having a cup 13 depending from itsend. This spider arm is so mounted upon. the shaft 7 as to partake ofthe longitudinal movement of the latter, and at the same time be free torotate about the shaft. lathe form shown, this mounting and adaptabilityofmovement is accomplished by the follow- .in means. Surrounding theshaft 7 IS a col ar 15, preferable of brass, secured by a set screw 16to the shaft 7 and having its annular upper edge or surfacerounded asclearly illustrated at 1'? in Fig. 3. A tubular sleeve member 18, ofbrass, is located within the centrally apertured spider arm member 11and surrounding the shaft 7.- "rte tower end is enlarged to form a whichthe lower, edge of the member 11 rests. or edge otithe sleeve member 18isialso rounded, as shown at 20 in Fig. 3. surfaces 17 and 20 bean-cg oand term a species of antitriction bear ng apart arms 12, each arm Thetwo rounded annular I ainst' each otherfig .25 held in place by a pinwhich greatly facilitates the free rotative movement of the spider armabout the shaft.

A. cap member on the shaft 7 comprises a hand-hold 21 and a shank 22,the latter being provided with a circular recess 23 extending inwardlyfrom its lower margin 2%. Within the shank recess 23 is a coil spring 26extending inwardly through the shank wall, as shown clearly in Fig. 4.The recess .23 is of a diameter to admit the end of the shaft 7 into theshank and abut the spring 25.

The cap is locked to the shaft by a bayonet-catch arrangement,comprising a longitudinally disposed groove 27, extending downwardlyfrom the. shaft end and communicating at its lower end with an annulargroove 28. These grooves 27 and 28 are of a size to admit that portionof the pin 23 which extends into the recess 23. The operator places thecap upon the shaft 7, turns it until the pin 23 registers with the slot27, presses downwardly to compress the spring, and then turns the cap tomove the pin into the slot 28, the upper wall of which thus locks thecap and shaft to ether.

hhe cups 13, it will be observed, are hemispherical members of sheetmetal provided with a beaded lower margin 29, and are secured,preferably, by rivets 30 to a disc member 31. This disc member 31 is provided with a bearin stud 32 which fits within the hollow end 33 of thearm 12 and is secured. therein by a rivet 3a or other convenient means.

The axial line through the end 33 coincides with the centrallongitudinal axis of the stud 32 as represented by the dotted line 5-5of Fig. 3, being positioned as shown normal to the door line of thecontainer 1, indicated by the dotted line a-a of Fig. 3. Thecup 13,however, is so secured to the disc member 30 that its axial line,indicated by thedotted lines c--5, Fig. 3, is at an angle to the line bt, thus bringing the beaded margin 29 of the cup in a plane at an angleto the plane of the bottom 3 of (til the tu as indicated by the dottedline d-=-a, Fig. 3. Thus a somewhat greater surface area of the cup 13lies on the outside of the axial line 5-5 than on the inside thereof.This position or tilt of the cup 13 is preserved during reciprccations,as the spider arm and cups are moved with the reciprocating shaft eedect, when the cups are alternately p uugcd into and drawn out of thewash water and clothes in the container, is to cause the spidcrarm andits cup to shift and move into different positions, as indicated by thedotted lines e, vlli ig. 2. llhis rotative shifting of positioncontinues prossively in the same direction about the fift 7, one shiftwith each reciprocative 7 upper end and with mounted upon the incensemovement of the shaft 7, as long the reciprocation is continued.-

I claim as my invention: I

1. A reciprocating, non-rotatable shaft, a cap member mounted thereon,and interengaging elements removably locking said shaft and cap membertogether, in combination with a collar fixed to the shaft at a pointbelow the cap member and a member, freely rotatable about the shaft,positioned between the cap member and said collar and resting upon thelatter.

2. The combination with a non-rotatable, vertically reciprocating shaftprovided with a recess extending longitudinally from its acircumferentially extending recess connected with the first mentionedrecess, a recessed cap member removably mounted on the recessed end ofthe shaft, a radially and inwardly extending pin on the cap memberadapted for engagement with said recesses, a collar fixed to said shaftbelow the cap, a freely rotatable member on the shaft intermediate thecap and the collar and resting upon the latter, and a spring in therecessed cap member hearing at one end upon the end of the shaft.

3. The combination with a non-rotatable, reciprocating shaft and a capmember removably secured upon the upper part of the shaft, of a collarfixedly secured to the shaft below the cap member and a spiderarmcarrying sleeve positioned on the shaft between the cap member and thecollar and bearing upon the latter, the lower surface of the sleeve andthe upper surface of the col lar being rounded to facilitate freerotative movement of the sleeve.

d. A. washing machine having a container, a non-rotatable, verticallyshaft extending into.the container through its bottom, a spider armmember mounted on the shaft to reciprocate therewith but free to rotateabout said shaft, cups, hemispherical in shapaeccentrically mounted on lsaid member whereby the bottom margin of the cup is tilted to lie in aplane at an angle to the bottom surface of the container.

A washing machine having a vertically reciprtmating, non-rotatableshaft, a spider arm member revolubly mounted on the shaft andhemispheidcally shaped cups arm, with the bottom edge. of'the cup in aplane at an angle to the surface of the water in the machine.

8. A washing machine having a container and a spider arm member adaptedfor vertical reciprocation within the container, hcmispherically shapedcups, a disc member for each cup having an attaching stud, means forsecuring the studs to the arm member, and means for securing the cupeccentrically to the disc, whereby the cup margin w ll lie in a plane atan angle to the bottom or surface of the container.

Uil

NA Arm 7. A washing machine hevin e eontainer, a member adapted forvertical reciprocation within the container, radially extending arms onsaid member, each having 5 a vertically extending bearing in its end, astud mounted. in said bearing, a circular, saucer shaped disc on thelower emi of each stud, a hemispherically shaped cup attached toeachdisc and so mounted that the 10 metrical axis of the cup and thelongitudinal axis of the stud will lie at inclined and. vertical angles,res ectiWel-y to the surface of the bottom of t e container.

In testimony that lcleim the foregoing as my inventlon, I afiix mysignature, in 15 the resence of two witnesses, this 31st day of ecember,1923,

2.4!? S W. DAWSON.

Witnesses: I

. mew V. Forearm, STANLEY Dim.

